Event Title

Utilization of Polythiophenolfor the Efficient Removal of Triorganotin Residues from Organic Reaction Mixtures

Location

CSU 253

Start Date

26-4-2005 10:00 AM

End Date

26-4-2005 12:00 PM

Student's Major

Chemistry and Geology

Student's College

Science, Engineering and Technology

Mentor's Name

Brian Groh

Mentor's Department

Chemistry and Geology

Mentor's College

Science, Engineering and Technology

Description

Triorganotin compounds are useful synthetic reagents having numerous applications but limited appeal due to the difficulty of removing toxic triorganotin reaction by-products. An efficient removal method would greatly benefit both industry and research where these compounds are already emerging as vastly important reagents. In particular, triorganotins are used in the production of pharmaceuticals and agrichemicals. In model reaction studies, polythiophenol has been found to bind tri-n-butyltin chloride and bis-(tri-n-butyltin) oxide. Formation of a tin-sulfur bond between liquid triorganotin compounds and an insoluble polymer facilitated removal by simple filtration. Reaction progress and the removal of tin were monitored by gas chromatography and 'H NMR. The process resulted in quantitative removal of tri-n-butyltin chloride and bis-(tri-n-butyltin) oxide from the model reaction system.

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Apr 26th, 10:00 AM Apr 26th, 12:00 PM

Utilization of Polythiophenolfor the Efficient Removal of Triorganotin Residues from Organic Reaction Mixtures

CSU 253

Triorganotin compounds are useful synthetic reagents having numerous applications but limited appeal due to the difficulty of removing toxic triorganotin reaction by-products. An efficient removal method would greatly benefit both industry and research where these compounds are already emerging as vastly important reagents. In particular, triorganotins are used in the production of pharmaceuticals and agrichemicals. In model reaction studies, polythiophenol has been found to bind tri-n-butyltin chloride and bis-(tri-n-butyltin) oxide. Formation of a tin-sulfur bond between liquid triorganotin compounds and an insoluble polymer facilitated removal by simple filtration. Reaction progress and the removal of tin were monitored by gas chromatography and 'H NMR. The process resulted in quantitative removal of tri-n-butyltin chloride and bis-(tri-n-butyltin) oxide from the model reaction system.